Diff and oil change today plus rotors

Val Walkinshaw · 05-28-2022, 01:00 AM

Differential fluid change is easier than an oil change. Didn't think it'd be hard but didn't think it'd be that easy either. How nice.

Pulsation in the cabin/seat when I brake. Not in the pedal or wheel. Did some research. Figured out it's likely pad transfer/deposits. Got the tell tale pad imprint so thought I'd look at my rear rotors and pads. Way too much meat on these pads for half a dozen track days and 25k miles. Need to change that:-) Also too much rust IMHO for a car that's never seen winter, garaged and doesn't get driven in the rain.

For those that struggle with the caliper bolts a breaker bar and pipe work great. I would borderline call it easy and that's coming from a medium build female doing this project solo. Can't speak for the fronts.

It's 2am and I don't have any wire brushes but I will and I think that rust is gonna clean up nice in the morning when I re-tackle this project. Overall couldn't be more pleased with my first attempt at working on this cars brakes.

Chutzpah · 05-28-2022, 10:10 AM

Nice job, nice to see woman taking care of business. Everything is neat and organized in your work area.

I’m going out on a limb here, but I’m thinking your rust may be a byproduct of washing the car and then parking it. The same may be true for the pad deposit. I always take my car for a short ride after washing it, just to ensure everything is dried out. In particular the brakes…

Val Walkinshaw · 05-28-2022, 11:41 AM

Quote:

Originally Posted by Chutzpah

Nice job, nice to see woman taking care of business. Everything is neat and organized in your work area.

I’m going out on a limb here, but I’m thinking your rust may be a byproduct of washing the car and then parking it. The same may be true for the pad deposit. I always take my car for a short ride after washing it, just to ensure everything is dried out. In particular the brakes…

Deposit is from some spirited driving, hard braking and then came up on some unexpected traffic that I had to sit in.

Since detailing and paint correction is my thing, you're probably right about the rust accumulation from washes.

Trochoidal · 05-28-2022, 01:35 PM

If you do pull the from rotors and get into a jam with those bolts, I’d suggest this breaker bar. My 1/2” Dewalt impact wouldn’t touch them and this was my best solution.

https://www.amazon.com/Star-Asia-120.../dp/B0021UR57I

s346k · 05-28-2022, 02:35 PM

had the dif oil been previously changed?

Chutzpah · 05-28-2022, 09:07 PM

Quote:

Originally Posted by Val Walkinshaw

Deposit is from some spirited driving, hard braking and then came up on some unexpected traffic that I had to sit in.

Since detailing and paint correction is my thing, you're probably right about the rust accumulation from washes.

Possibly.. but since it looks like it’s the shape of the brake pad, it looks like stationary pad deposit. I had the same thing on my first 6th Gen and had to burn it off with some hard braking.

Spaceme1117 · 05-29-2022, 09:17 AM

I installed PowerStop rotors and Z23 brake pads earlier this year. Had a lot of pulsation when braking and the stock rotors were definitely warped.

05-28-2022, 01:00 AM	#1
Val Walkinshaw L8ap3x Drives: 2018 2SS 1LE Join Date: Jun 2018 Location: SE MI/ NW OH Posts: 429 View My Garage	Diff and oil change today plus rotors Differential fluid change is easier than an oil change. Didn't think it'd be hard but didn't think it'd be that easy either. How nice. Pulsation in the cabin/seat when I brake. Not in the pedal or wheel. Did some research. Figured out it's likely pad transfer/deposits. Got the tell tale pad imprint so thought I'd look at my rear rotors and pads. Way too much meat on these pads for half a dozen track days and 25k miles. Need to change that:-) Also too much rust IMHO for a car that's never seen winter, garaged and doesn't get driven in the rain. For those that struggle with the caliper bolts a breaker bar and pipe work great. I would borderline call it easy and that's coming from a medium build female doing this project solo. Can't speak for the fronts. It's 2am and I don't have any wire brushes but I will and I think that rust is gonna clean up nice in the morning when I re-tackle this project. Overall couldn't be more pleased with my first attempt at working on this cars brakes. Attached Images

05-28-2022, 01:35 PM	#4
Trochoidal Drives: 2017 Camaro 2SS A8 Join Date: May 2019 Location: USA Posts: 1,656	If you do pull the from rotors and get into a jam with those bolts, I’d suggest this breaker bar. My 1/2” Dewalt impact wouldn’t touch them and this was my best solution. https://www.amazon.com/Star-Asia-120.../dp/B0021UR57I __________________ Roto-Fab w/sound tube delete, Katech ported TB, Pray IM, Velossa, DD side markers, DSX FF, UPR Catch can, Halo brace, My custom vent gauge pod Originally Posted by arpad_m - “Aww, yet another oil thread with almost the same question in the OP“

05-28-2022, 02:35 PM	#5
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,396	had the dif oil been previously changed? __________________ 2016+ camaro: everyone’s first car

05-28-2022, 10:10 AM	#2
Chutzpah Drives: Wild Cherry LT1 Join Date: Dec 2016 Location: Massachusetts Posts: 1,925	Nice job, nice to see woman taking care of business. Everything is neat and organized in your work area. I’m going out on a limb here, but I’m thinking your rust may be a byproduct of washing the car and then parking it. The same may be true for the pad deposit. I always take my car for a short ride after washing it, just to ensure everything is dried out. In particular the brakes…

05-29-2022, 09:17 AM	#7
Spaceme1117 Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019 Location: Erlanger, Kentucky 41018 Posts: 815	I installed PowerStop rotors and Z23 brake pads earlier this year. Had a lot of pulsation when braking and the stock rotors were definitely warped.

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